score of u The IQ test- a questionable measure of intelligence is known to have a mean 100 with a standard deviation of o = 15. Provide a range of plausible values for the average IQ test score in a random sample of n = 25 people. = =

The table below shows results from a recent General Social Survey on two variables, respondent sex and whether one believes in an afterlife. Compare the proportions of women and men who believe in an afterlife. Question: State the hypotheses, calculate the test statistic, p-value and write your conclusions, using α = 0.05.   Belief in Afterlife   Sex Yes No or Undecided Total 1. Male 375 134 509 2. Female 435 147 582 Let  = 1. be the population proportion of men who believe in an afterlife Let  = 2. be the population proportion of women who believe in an afterlife

Answer choices for second box: Conclude that there is not statistical evidence taht the production line is not operating properly. Allow the production process to continue Conclude that there is not statistical evidence that the production line is not operating properly. Do not allow the production process to continue Conclude that there is statistical evidence that the production line is not operating properly. Allow the production process to continue Conclude that there is statistical evidence that the production line is not operating properly. Do not allow the production process to continue   Answer choices for third box: Conclude that there is statistical evidence that overfilling or underfilling exists. Do not shut down and adjust the production line Conclude that there is not statistical evidence that overfilling or underfilling exists. Shut down and adjust the production line Conclude that there is statistical evidence that overfilling or underfilling exists. Shut down and…

Read through this scenario and look at the data that was collected.  State the null and all possible research hypotheses.  Review the results below (I used SPSS) and answer the questions that follow. Scenario:  A researcher wants to see if gender and / or income affects the total amount of help given to a stranger who is sitting on the side of a busy road with a sign asking for help.  The independent variables are gender, income, and the interaction of gender and income.  The dependent variable is total help. He wants to know if one or both factors – or the interaction of the two - affects the total amount of help offered.  Because he is analyzing two independent variables (gender and income), he used a factorial ANOVA.  His results show the main effect of each of the independent variables on the dependent variable (total help) and the interaction effect.  The researcher is using a 95% confidence interval which means that he wants to be at least 95% sure that his independent variables…

QUESTION 2 In decision analysis, the detection rate is the same thing as a. the accuracy rate. b. the false positive rate. O. the specificity. O d. the sensitivity.

A statistics tutor wants to assess whether her tutoring has improved her students’ grades. She records the following grades for a group of students prior to and after receiving her tutoring. Use α = .05.  Before tutoring After tutoring 2.4 3.0 2.5 2.8 3.0 3.5 2.9 3.1 2.7 3.5 a. Do the data indicate that her tutoring has significantly improved students’ grades? b. Compute the 95% confidence interval.

Which of the following is not true about the process of​ statistics?       Question content area bottom Part 1 Choose the correct answer below.     A. When the results from a sample are extended to the​ population, it is called inference.   B. If data are not collected​ properly, the conclusions that are drawn will be meaningless.   C. Data are typically collected from a sample because it is too difficult and expensive to collect data from an entire population.   D. The first step in the process of statistics is to collect the data.

Yall Said only two questions so here’s my 6 and 8

Answer part d only

You are now ready to perform your own statistical analyses for each of the following situations.  Use the examples given above to produce the SPSS output.  Copy the output into a Word document to save paper.  Then, type a sentence or two in which you interpret the results using APA reporting method that was outlined above. Use the five step process to help you determine your results and report your findings.  In reality, SPSS is doing the calculation for you—your reporting is what would be reported in step 5 of hypothesis testing. Does the average number of years of education attained (EDUC) for this sample differ from the national average of 13.2? (13.2 is the test value.)     One-Sample Statistics   N Mean Std. Deviation Std. Error Mean Highest year of school completed 2345 13.73 2.974 .061           One-Sample Test   Test Value = 0 t df Sig. (2-tailed) Mean Difference 95% Confidence Interval of the Difference Lower Upper…